Risk Of Ruin

What Does it Mean?
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The probability of an individual losing sufficient trading or gambling money (known as capital base) to the point at which continuing on is no longer considered an option to recover losses.  

Risk of ruin is calculated by taking into account the probability of winning (or making money on a trade), the probability of incurring losses, and the portion of an individual's capital base that is in play or at risk. Also known as the "probability of ruin".

Investopedia Says:
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Risk of ruin need not result in bankruptcy (although it often does), but rather the point at which continuing on would be unwise. It signifies a risk more relevant in trading and gambling, where there is a high probability of losing an entire bet or trade. 

The risk becomes even greater for individuals who trade large percentages of their accounts. For example, say an investor has $3,000 and purchases $3,000 worth of call options. If there is a 40% chance that the options will not be exercised, then the risk of ruin is 40%. 

Graveyard Market

What Does it Mean?
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The period near the end of a prolonged bear market. In a graveyard market, long-time investors have taken large losses, while new investors prefer to stay liquid by sitting on the sidelines and keeping their money in cash or cash-equivalent securities until market conditions improve.

Investopedia Says:
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The term graveyard market is an apt description of this market phenomenon: the investors in a graveyard market can't get out of it, and the investors who aren't in it don't want to be. Therefore, until a positive outlook becomes more conclusive, the overall market conditions will be slow to improve.